Bobbin-machine.



Ll Hrrgr A. BRAUN.

` PATENTED JULY 23, 1907.

BOBBIN MACHINE. Y

APPLIOATION FILED HAB. 13, 1907.'

4 SHEETS-SHEET 1.

was Nmrs- PETERS co., wAsHmmaN. n. c.

A.BRAUN. BOBBIN MACHINE.

APPLICATION FILED MAB. 13, 190'.

Rs co., wAsHmoraN, n. c.

PATENTED JULY 23, '1907.

4 SHEETS-SHEET 2.

110.8611631. PATENTED JULY 23, 1907. 11.1111111111.

BOBBIN MACHINE.

APPLIOATION FILED 111111.13, 1907. A

4 SHEETS-s112111' s.

HE Nasal: Fzrsns co., wAsmNamN, 1:14 c,

A. BRAUN.

BOBBIN MACHINE.

APPLIOATIUN FILED 11.13.13, 1907.

PATENTED JULY 23, 1907.

4 SHEETS-SHEET 4.

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UNITED STATES AUGUST BRAUN, OF WEST HOBOKYEN, NEW JERSEY.

BOBBIN-MACHINE.

Specification of Letters Patent.

Patented July 23, 1907.

Application filed March 13, 1907. Serial No. 362,249.

To all whom it 'may concern:

Bc it known that l, AUGUST BRAUN, a subject of the German Emperor, and aresident of West Hoboken, county of Hudson, State of New Jersey, haveinvented Certain new and useful Improvements in Bobbin-Machinos, ofwhich the following is a specification.

The present invention pertains to bobbin winding machines and has forits object to provide means for enabling the automatical separation ofthe ends of the yarn of two individual bobbins while the machine is inoperation, and a new bobbin is being wound.

Hitherto, for this piu-pose, the operator has had to use scissors or aknife to Cut through the ends of two individual bobbins, by which act,however, it frequently happened that the nished bobbin was destroyed,the yarn being unwound.

Another object of my invention is to arrange the spindle on which thebobbin is wound, such that in case of breakage, the same can be easilyand readily removed and replaced with less expense than in the now usedmachines.

My invention also relates to the arrangement, construction andcombination of parts which will hereinafter be fully specified.

1n order to make my invention more clear, the same is illustrated in theaccompanying drawing, in which similar reference numerals denotecorresponding parts, and in which Figure l is an elevation; Fig. 2 aplan view Fig. S a central cross section of Fig. 2; Fig. 4 a verticalsection through line x-fc of Fig. 2; Fig. 5 a vertical cross sectionthrough line y-g/ of Fig. 2; Figs. 6, 7 and 8 are enlarged detail views;Fig. 9 is a front elevation of the recessed cog wheel; Figs. 10 to 14are diagrammatic views illustrating the mode of operation of the machineand Figs. 15 and 16 are an enlarged side View and a cross section of thespindle attachment, respectively.

The machine illustrated in the drawing is a double machine, that is, themachine has on each side of the driving shaft, the same working partssymmetrically arranged. lt will therefore suHce to describe only onehalf of the machine, the same reference numerals that denote thecorresponding parts on one side of the machine applying also to those onthe other side thereof.

1 denotes the driving shaft supported in a frame 2 secured on the base 3of the machine. This shaft, as in ordinary bobbin machines, carries awheel, circular disk, or roller 4, that by frictional contact with theroller 5 mounted on the spindle shaft 6 is adapted to revolve the latterwhereby the yarn 7 is caused to wind around the square spindle and formthe bobbin. The yarn 7 is carried through a guide bar 8 that is pivotedat 9 in the frame 2 and by a cam disk 10 mounted on the driving shaft 1is caused to swing to and fro to semicylindrical groove 26.

distribute the yarn on the spindle as the latter revolves.

The shaft 6 carrying the friction roller 5 is mounted in a swingingframe 1.1 borne upon the shaft 12 which is journaled in a bracket 13projecting from the base 3. Alongside with this swinging frame 11 andbelow the spindle a second swinging frame 14 is arranged that isprovided with guide pieces 15, 16 in which a vertical slide 17 iscapable of moving up and down. Normally, this slide is forced in upwardposition by a coil spring 18 (Figs. 7 and 8). The slide is provided witha vertical recess or slit 19 through which the free end of a locking baror dog 20 is allowed to pass and to grasp with its nose shaped portion21 the upper edge of an adjustable block 22 secured to the said slide.The locking bar is rigidly secured to the frame 2 of the machine andnormally is adapted to engage the slide 17 and to hold the swingingframe 14 and consequently the swinging frame 11 in upright position, inwhich the friction roller 5 is in Contact with the driving roller ordisk 4. In its normal position, the slide 17 projects so far upwardsthat the distance between its enlarged upper portion and the spindle isequal to one half of the desired thickness of the bobbin. When thelatter has assumed the desired thickness it will depress the slide 17that hereby will become disengaged from the locking bar 20 permittingthe frames 14 and 11 to swing laterally as shown in Fig. 8..

Alongside with the frame 14 is a bar or arm 23 that is rigidly securedto the shaft 12 and is capable of swinging therewith, and with theframes 14 and 11. The upper end of said bar is enlarged to form a headthat lies in front of the spindle and is provided with an aperture largeenough to receive the finished bobbin. As the bobbins may be ofdifferent thicknesses, I construct the head of two sections 24, 25(Figs. 6, 7 and 8) of which each is provided on its inner surface with atogether by screw bolts 27 secured in the section 24 and by coil springs28 borne on the outwardly project- The twosections are held ing ends ofsaid bolts 27 and pressing against the removable section 25. The headreceiving the bobbin is thus expandible to comply with bobbins ofdifferent thicknesses.

After the swinging frames 14 and 11 are released from the nose 21 of thelocking bar 20 by the pressure of a finished bobbin, the same, asalready mentioned, together with the holder 24, 25 will swing sidewardstowards a slide mechanism 29 adapted to displace the bobbin on and expelit from the spindle into the holder 24, 25. This slide mechanismconsists of a horizontal slide 30 movable in a bracket 31 projectingfrom the base 3. The rear end of this slide is engaged with asemi-circular lever 32 pivoted to the base 3 and carrying a roll 33.This lever is operated by a cam disk 34 borne upon a shaft 35 that isdriven by cog wheelsY 36, 37 from the shaft 38 carryinga worm wheel 39,that meshes with a worm 40 on the driving shaft 1 (Fig. 3). The forwardend of said horizontal slide 30 is provided with a laterally extendingarm 41 that is slightly curved upwards (Figs. 7 and 8) and at` its endis provided with a split 42 adapted to engage the square spindle 43 atthe rear of the finished bobbin, when the frame 11 carrying the frictionroller 5 and the spindle 43 are swung sidewards, as heretoforementioned. At a certain moment, when the spindle is brought intoengagement vwith the split 42 the cani disk 34 will act upon the roll 33of the lever 32, swinging the latter and thereby moving the slide 30,that with. its notched arm 41 will shift the bobbin forward. By asubsequently completed new bobbin, the first will be expelled from thespindle into the sectional holder 24, 25 in which it will be heldstationary until expelled therefrom by the succeeding second bobbin.

To control the movement of the slide, that is, to allow of the latterstarting and stopping at the proper time, the cog wheel 36 has a notchedportion 3G formed by the omission of a few teeth, as shown in Fig. 9, sothat, while this notched portion registers with the cog wheel 37 nomovement will be transmitted unto the shaft 35 and the slide 30 will beat rest. The cam 34 has a projection or pin 34 with which normally anose 44 engages that is secured ata suitable point to the swinging frame11, the nose serving to arrest the cog wheel 36 and to prevent thelatter from involuntarily coming into meshing connection with the cogwheel 37. At the rear of the hub 45 of the cog wheel 36 an eccentric pin46 is provided which is connected to a spring 47 that tends to turn thecog wheel 36 so as to throw the latter into gear with the cog wheel 37.When the frame 11 is swung towards the slide 30, the nose 44 disengagesthe pin 34 and releases the cog wheel 36 which by its spring 47 will bethrown into gear with the wheel 37 and bring the slide 30 intooperation.

While the frames 11 and 14 are in the inclined position (Fig. 8) and thefinished bobbin is being displaced on the spindle, it is necessary tocarry the yarn toward the end of the spindle along with the finishedbobbin to prevent it from becoming twisted around. For this purpose, abar 48 is provided that is rigidly secured to shaft 12 and has an upperarm 49 which is capable of swinging longitudinally of the spindle. Thefree end of said upper arm is formed to a guide 50 which is providedwith an inclined slit 51 and which extends somewhat sidewards andparallel to the spindle. This upperarm is adapted to be operated from acam disk 52 which is borne on the shaft 35 and which acts against a noseor projection 53 arranged at the lower end of the arm 49. At the momentwhen the frames 11 and 14 are swung towards the slide mechanism 29 andthe finished bobbin is being displaced on the spindle by slide 30, thecam disk 52 causes the arm 49 to swing forward, whereby its guideportion 50 will grasp the yarn and carry it to the forward end of thespindle. A spring 54 secured with one end tothe frame 14 and with itsother end to the arm 49 tends to draw the latter into initial position.The shaft 6 borne in the swinging frame 11 is split at its forward endto receive the square spindle 43,

'seaesi which is secured in position in said shaft by a nut 55 screwedon said split end that is reduced in diameter and threaded on theoutside (Figs. 6, 15 and 16), said nut and split end of the shaftforming a clamp.

The mode of operation of this machine is as follows: When a bobbin iscompleted, the frames 11 and 14 are swung towards the slide mechanism 29in the abov'e described manner, so that the slide 30 'can 'shift thebobbin towards the end of the spindle (see Fig. 13) while at the sametime the arm 49 will swing forward and carry the yarn to the center ofthe displaced bobbin (Figs. 10, 12, 13, 14) that continues to revolvecausing the yarn to wind around the center of the said bobbin a few moretimes (Fig. 13) before the frames are returned into initial position,and the yarn brought back to the rear of the spindle to start a newbobbin. After the second bobbin is completed, the same is shifted by theslide mechanism 29 towards the end of the spindle in the aforesaidmanner, there by expelling the bobbin ahead of it and pressing the sameinto the holder 24, 25 (Figs. 4, 6 and 10). Here this first bobbin isheld stationary while the second bobbin that is still carried by thespindle, continues to revolve. Owing to the great number of revolutionsof the spindle and of the second bobbin thereon, that part of the yarnthat connects the stationary Erst bobbin and the revolving second bobbinbecomes twisted and finally breaks through, thus separating the twobobbins from one another. As the work continues, the second bobbin isremoved by the su@ ceeding one and is pressed into the holder 24, 25expelling the first bobbin which falls then into a suitable receptacle(not shown) to be ready for use. To move the swinging frames 11 and 14into initial position after the displacement of the bobbin, the shaft 35carries a cam disk 56 that is adapted to act on a roller 57 secured tothe frame 14.

What I claim and desire to secure by Letters Patent is:

1. In a bobbin winding machine, the combination with a yarn guidingmechanism, of a driving roller, a spindle shaft, a friction roller onsaid spindle shaft adapted to be driven by the driving roller andcapable of being thrown out of contact with the latter, means forholding the frietion roller in contact with the driving roller, meansfor swinging the said roller and spindle shaft sidewards from thedriving roller, means for displacing the finished bobbin to the forwardend of the spindle and for expelling it therefrom, means for receiving'the expelled bobbin and for holding the same stationary while a newbobbin is being wound and until expelled by the succeeding bobbin, andmeans for returning the spindle shaft and friction roller into initialposition, substantially as and for the purpose specified.

2. ln a bobbin Winding machine, the combination with a yarn guidingmechanism, of a driving roller, a swinging frame, a spindle shaftrotatively borne in said frame, a friction roller on said spindle shaftadapted to be driven by the driving roller, means for holding theswinging frame in upright position, means for swinging the samesidewards from the driving roller to bring the friction roller out ofcontact with the driving roller, means for displacing the finishedbobbin to the forward end of the spindle and for expelling it therefrom,means for receiving the expelled bobbin and for holding the samestationary while a new bobbin is being wound, and until expelled by thesucceeding bobbin and means for returning the spindle shaft and frictionroller into initial position, substantially as and for the purposespecified.

3. In a bobbin winding machine, the combination with a yarn guidingmechanism, of a driving roller, a swinging frame, a spindle shaftrotatively borne in said frame, a spindle removably secured in saidshaft, a friction roller mounted 'on said shaft and adapted to be drivenby the driving roller, means for holding the swinging frame in uprightposition, means for swinging the same sidewards from the driving rollerto bring the friction roller out of contact 4with the driving roller,means for displacing the finished bobbin to the forward end of thespindle and for expelling it therefrom, means for receiving the expelledbobbin and for holding the same stationary while a'new bobbin is beingwound, and until expelled by the succeeding bobbin, and means forreturning the spindle shaft and friction roller into initial position,substantially as and for the purpose specified.

'l. In'a bobbin winding machine, the combination with a yarn guidingmechanism, of a driving roller, a swinging frame. a spindle shaftrotatively borne in said frame, a friction roller on said shaft-adaptedto be driven by the driving roller. a spindle removably secured in thesaid spindle shaft, a spring actuated vertical slide connected with thesaid swinging frame and arranged below the spindle to be operated by thebobbin when the latter assumes the desired thickness. a locking barengaging said slide to hold the swinging frame in upright position andto release the same upon the downward movement of the said verticalslide, means for displacing the finished bobbin to the forward end ofthe spindle and for expelling it therefrom. means for receiving theexpelled bobbin and for holding the same stationary while a new bobbinis being wound and until expelled by the succeeding bobbin, and meansfor returning the spindle shaft and friction roller into initialposition, substantially as and for the purpose specified.

5. In a bobbin winding machine, the combination with a yarn guidingmechanism. of a driving roller, a swinging frame` a spindle shaftrotatively borne in said frame, a friction roller on said shaft adaptedto be driven by the said driving roller, a square spindle removablysecured in said spindle shaft, a horizontal slide capable of movinglongitudinally of the said spindle, a notched arm secured to said slide'and extending transversally to the spindle, said notched arm beingadapted to engage the spindle at the reati of the nished bobbin thereon,and to displace the latter as the slide is being moved forward, aswinging arm arranged in front of the spindle and adapted to swingsimultaneously with the swinging frame of the latter, an

expandible holder formed at the upper end of the said` swinging arm, toreceive the finished bobbin when expelled from the spindle shaft,substantially as and for the purpose specified.

G. In a bobbin winding machine, the combination with a yarn guidingmechanism, of a driving roller, a swinging frame, a spindle shaftrotatively borne in said frame, a friction roller mounted on said shaftand adapted to be driven by the driving roller, a spindle removablysecured in said spindle shaft, an automatically working slide capable ofmoving longitudinally of the spindle, a notched arm at the forward endof said slide extending transversally to the spindle and adapted toengage the latter at the rear of the finished bobbin and to displace thelatter, n swinging lever adapted to swing simultaneously with theswinging frame, a spring actuated guide piece pivotally secured to saidswinging arm to swing longitudinally of the spindle, said guide piecehaving a notch adapted to grasp the yarn as the bobbin is beingdisplaced on the spindle, to carry it to the forward end of the latter,an expandible holder in front of the spindle, said holder being capableof swinging simultaneously with the latter and adapted to receive andhold the finished bobbin stationary while a new bobbin is being finishedand until expelled by the saine, substantially as and for the purposespecified.

Signed at New York this 11 day of March, 1907.

AUGUST BRAUN.

Witnesses:

.T oHN T. CAnMoDY, Max D. ORDMANN.

